package io.mvvm;

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageExt;
import org.apache.rocketmq.remoting.common.RemotingHelper;
import org.junit.Test;

import java.util.List;
import java.util.concurrent.TimeUnit;

/**
 * @program: spring-cloud-alibaba
 * @description: 发送同步消息
 * @author: 潘
 * @create: 2020-12-27 16:11
 **/
public class SyncProducer {

    /**
     * 发送同步消息
     */
    @Test
    public void sendSyncProducer() throws Exception {
        // 实例化消息生产者Producer
        DefaultMQProducer producer = new DefaultMQProducer("group1");
        // 设置NameServer的地址
        producer.setNamesrvAddr("127.0.0.1:9876");
        // 启动Producer实例
        producer.start();
        for (int i = 0; i < 10; i++) {
            // 创建消息，并指定Topic，Tag和消息体
            Message msg = new Message("topic1", "tag1",
                    ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET)
            );
            // 发送消息到一个Broker
            SendResult sendResult = producer.send(msg);
            // 通过sendResult返回消息是否成功送达
            System.out.println(sendResult);
            TimeUnit.SECONDS.sleep(1);
        }
        // 如果不再发送消息，关闭Producer实例。
        producer.shutdown();
    }



}
